<s>
DisplayWrite	B-Protocol
(	O
sometimes	O
written	O
as	O
Displaywrite	B-Protocol
)	O
was	O
a	O
word	B-General_Concept
processor	I-General_Concept
software	O
application	O
that	O
IBM	O
developed	O
and	O
marketed	O
for	O
the	O
IBM	B-Device
PC	I-Device
and	O
PCjr	B-Device
.	O
</s>
<s>
DisplayWrite	B-Protocol
's	O
feature	O
set	O
was	O
based	O
on	O
the	O
IBM	B-Protocol
Displaywriter	I-Protocol
System	I-Protocol
,	O
a	O
dedicated	O
microcomputer-based	O
word	O
processing	O
machine	O
.	O
</s>
<s>
Because	O
the	O
two	O
systems	O
were	O
so	O
similar	O
,	O
an	O
experienced	O
Displaywriter	B-Protocol
user	O
could	O
start	O
using	O
DisplayWrite	B-Protocol
immediately	O
.	O
</s>
<s>
For	O
the	O
Intel	O
platform	O
there	O
were	O
DisplayWrite	B-Protocol
versions	O
for	O
PC/MS	O
-DOS	O
and	O
DisplayWrite	B-Protocol
5/2	O
programmed	O
under	O
OS/2	B-Application
.	O
</s>
<s>
DisplayWrite/36	O
was	O
the	O
word	O
processing	O
component	O
of	O
IBM	O
Office/36	O
,	O
which	O
allowed	O
an	O
office	O
to	O
use	O
the	O
SQL-based	O
database	O
file	O
for	O
labels	O
and	O
form	O
letters	O
.	O
</s>
<s>
DisplayWrite/370	O
,	O
a	O
much	O
more	O
powerful	O
version	O
with	O
full	O
graphics	O
and	O
WYSIWYG	B-Application
support	O
,	O
was	O
supported	O
for	O
IBM	O
zSeries	O
mainframe	O
computers	O
until	O
May	O
2015	O
.	O
</s>
<s>
(	O
see	O
IBM	B-Protocol
Displaywriter	I-Protocol
System	I-Protocol
)	O
.	O
</s>
<s>
DW/370	O
was	O
a	O
host-based	O
word	B-General_Concept
processor	I-General_Concept
.	O
</s>
<s>
It	O
was	O
marketed	O
between	O
1993	O
and	O
2015	O
for	O
MVS/CICS	O
(	O
now	O
z/OS	O
)	O
and	O
VM/CMS	B-Application
.	O
</s>
<s>
IBM	B-Protocol
DisplayWrite	I-Protocol
's	O
native	O
file	O
format	O
is	O
based	O
on	O
IBM	O
's	O
DCA	O
(	O
Document	B-Application
Content	I-Application
Architecture	I-Application
)	O
RFT	O
(	O
Revisable	B-Language
Form	I-Language
Text	I-Language
)	O
specification	O
,	O
but	O
adds	O
additional	O
structures	O
.	O
</s>
<s>
Depending	O
on	O
the	O
DisplayWrite	B-Protocol
version	O
,	O
the	O
document	O
files	O
use	O
.DOC	O
or	O
.TXT	O
file	O
name	O
extension	O
.	O
</s>
<s>
The	O
DisplayWrite	B-Protocol
software	O
can	O
export	O
to	O
and	O
import	O
from	O
pure	O
DCA/RFT	O
files	O
(	O
which	O
typically	O
have	O
.DCA	O
or	O
.RFT	O
file	O
name	O
extension	O
)	O
.	O
</s>
<s>
RFT	O
(	O
IBM	O
Revisable	B-Language
Form	I-Language
Text	I-Language
)	O
should	O
not	O
be	O
confused	O
with	O
RTF	O
(	O
Rich	O
Text	O
Format	O
)	O
,	O
which	O
is	O
a	O
Microsoft	O
specification	O
.	O
</s>
